Prologue

Writing in my ‘Onii-chan notebook’, I
let out a laugh. I knew just how red my face was without having to
look at the mirror. But I couldn’t help it. Onii-chan finally said
that he likes little sisters, you know? Of course I would be happy
about that!

“So potentially, he might also like
me…!”

Different scenarios floated around in
my head. Being lovers, getting married, being a married couple, and
so on. Just thinking about them made my hand move on its own, writing
countless lines into my notebook.

“Ehehehehehe… Ha?! N-No, calm
down…! You have to control yourself for now…!”

T-That’s right, him accepting his
feelings toward me was merely the beginning. From now on, I have to
make him see me as a girl!

I glanced at the wall. On the other
side of that wall is Onii-chan’s room. These past few days, he has
been waiting for an answer from the light novel contest.

“At a time like this, I should be
comforting him,” I muttered.

…In tough times, that is the wife’s
job…! Thinking about it, this is my chance! I have to become
Onii-chan’s strength and make him see me as a worthy woman.

Thinking that, I stood up to prepare
some cocoa for him. In that moment, I looked at the calendar on the
wall, walking up to it for a better look.

It’s almost Christmas. And soon after
that, it’s my birthday…

“I wonder if Onii-chan will prepare a
party for me this year…”

Last year was a bit hard for him
because of our relationship, but this year for sure…!

“A romantic birthday with just the
two of us…! Ehe, ehehehehehehehehe.”

Instead of preparing the cocoa, I just
stood there, lost in my fantasies.